腹部CT增强检查对显示腹部实质脏器和血管病变至关重要。多层螺旋CT的发展为腹部实质脏器及血管获得最佳增强效果提供了可能,也对传统的增强扫描方法提出了挑战。小剂量团注试验法和自动跟踪触发技术是两种新的增强扫描技术,可以使腹部增强获得更佳增强效果;不同注射流率、双筒高压注射器及生理盐水的应用进一步提高了对比剂的利用率。 Abdominal CT enhanced examination of the vital organs of the abdomen and vascular lesions is essential. The development of multi-slice spiral CT provides the possibility of obtaining the best enhancement of the real visceral organs and blood vessels in the abdomen, and poses a challenge to the traditional enhanced scanning method. Small bolus bolus injection test and automatic tracking triggering are two new enhanced scanning techniques that can enhance the abdomen enhancement. Different injection rates, dual-barrel high-pressure syringes and physiological saline further improve the contrast Utilization rate.